package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @ClassName ListValueConstraintValidator
 * @Author zhongjunjie
 * @Date 2020/11/30 7:58 下午
 * @Version 1.0
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {

    private Set<Integer> set = new HashSet<>();

    //初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        for(int val : vals) {
            set.add(val);
        }
    }

    /*
     *  @Param value需要校验的值
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {

        return set.contains(value);
    }
}
